| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef UI_GL_GPU_SWITCHING_MANAGER_H_ |
| #define UI_GL_GPU_SWITCHING_MANAGER_H_ |
| |
| #include <vector> |
| |
| #include "base/memory/singleton.h" |
| #include "ui/gl/gl_export.h" |
| #include "ui/gl/gpu_preference.h" |
| |
| #if defined(OS_MACOSX) |
| #include <OpenGL/OpenGL.h> |
| #endif // OS_MACOSX |
| |
| namespace ui { |
| |
| class GL_EXPORT GpuSwitchingManager { |
| public: |
| // Getter for the singleton. This will return NULL on failure. |
| static GpuSwitchingManager* GetInstance(); |
| |
| // Set the switching option to PreferIntegratedGpu. |
| void ForceUseOfIntegratedGpu(); |
| // Set the switching option to PreferDiscreteGpu; switch to discrete GPU |
| // immediately on Mac where dual GPU switching is supported. |
| void ForceUseOfDiscreteGpu(); |
| |
| // If no GPU is forced, return the original GpuPreference; otherwise, return |
| // the forced GPU. |
| gfx::GpuPreference AdjustGpuPreference(gfx::GpuPreference gpu_preference); |
| |
| // In the browser process, the value for this flag is computed the first time |
| // this function is called. |
| // In the GPU process, the value is passed from the browser process using the |
| // --supports-dual-gpus commandline switch. |
| bool SupportsDualGpus(); |
| |
| void SetGpuCount(size_t gpu_count); |
| |
| private: |
| friend struct DefaultSingletonTraits<GpuSwitchingManager>; |
| |
| GpuSwitchingManager(); |
| virtual ~GpuSwitchingManager(); |
| |
| #if defined(OS_MACOSX) |
| void SwitchToDiscreteGpuMac(); |
| |
| CGLPixelFormatObj discrete_pixel_format_; |
| #endif // OS_MACOSX |
| |
| gfx::GpuPreference gpu_switching_option_; |
| bool gpu_switching_option_set_; |
| |
| bool supports_dual_gpus_; |
| bool supports_dual_gpus_set_; |
| |
| size_t gpu_count_; |
| |
| DISALLOW_COPY_AND_ASSIGN(GpuSwitchingManager); |
| }; |
| |
| } // namespace ui |
| |
| #endif // UI_GL_GPU_SWITCHING_MANAGER_H_ |